Hello Community,

Can you recommend a high accuracy MEMS-based sensor that is suitable for heart rate monitoring?

Application such as a digital stethoscope. Thanks.

hello everyone

how to understand the parameter of a differential microphone for example IM73A135V01,

the sensitivity is measured under 1Pa peak of 1Pa rms ？

there are two outputs of the microphone, but acoustic specification only have one value ,

for example, the sensitivity -38dBV  is for each output  ?  so if using this microphone , the total sensitivity  is -32dBV？

AOP 135 dBSPL is measured on each output respectively or the difference of the two outputs ?

thank you!

Hello, I bought the mems microphone and the XMC 2Go kit, and I want to test the mems microphone through arduino, but the development board management download in arduino always reports an error (), and the XMC series development board cannot be loaded. Check through the forum I found that it may be a network problem, because I am a user in China, I have tried to use vpn, but it does not work, do you have any solutions to solve this problem?

如题，我的麦克风型号为IM69D130，在录音过程中，某些声音会伴随滋滋的声音，通过软件分析，这些滋滋声音都达到了最高的阈值（如图），但声源声音并无明显放大，放大后，发现出现滋滋声区域的噪声的波形很有规律（如图），我想知道为什么会造成这一现象，以及如何解决这一现象

Acoustic Event Detector (AED) where can I get info as mentioned in the Smart Alarm System (SAS) application brief?  I am not interested in other parts of the SAS, just the AED.  Lot's of marketing hype but no actual hardware links.  Frustrating!

Hi all,
Is the SDM technology based on US PAT 2016/0066099A1?

US2016/0066099A1:

Best Regards,
h_nakamura

Hi all,
There aren't the max and min value in the Acoustic characteristics in the datasheet except the sensitivity. when many mics are used same time and executes digital signal processing (eg. ANC) with the data from each mic, I think that the customer should consider the deviation of the acoustic characteristics of each MIC.
Why there is no description them?
For example, how much is the deviation of Individual differences regarding "Typical group delay and phase response"?

Best regards,
H.N

I'm looking for the pin configuration of the flex boards. Especially the configuration of the five pads near the microphone itself. Attached is a picture to make it clear which pads.

Hope there is information about this available.